This discussion paper led to a publication in 'Mathematical Methods of Operations Research', 59, 147-166. <P> Cooperative games on antimatroids are cooperative games restricted by a combinatorial structure which generalize the permission structure. So, cooperative games on antimatroids group...</p>

Forecasts from various experts are often used in macroeconomic forecasting models. Usually the focus is on the mean or median of the survey data. In the present study we adopt a different perspective on the survey data as we examine the predictive power of disagreement amongst forecasters. The...

Over a five-year period in the 1990s Vietnam experienced annual economic growth of more than 8% and a decrease of 15 points in the proportion of children chronically malnourished (stunted). We estimate the extent to which changes in the distribution of child nutritional status can be explained...

This discussion paper resulted in a publication in 'Economica', 2008, 75(300), pages 782-796.<P> Alphabetic name ordering on multi-authored academic papers_new, which is the convention in theeconomics discipline and various other disciplines, is to the advantage of people whose lastname initials...</p>

We analyze the empirical violation of the Hillman condition, a necessary and sufficient condition for the correspondence between comparative advantage and pre-trade relative prices. Our comprehensive data set allows us to investigate the Hillman condition for virtually all countries of the...

Recent research has shown that the standard labor matching model hasdifficulties in reproducing the co-movement patterns observed in US data. Thisis due to the fact that the standard model lacks sufficient propagation of shocks.This paper shows that refining the informational structure of the...

Approximation formulae are developed for the bias of ordinary andgeneralized Least Squares Dummy Variable (LSDV) estimators in dynamicpanel data models. Results from Kiviet (1995, 1999) are extended tohigher-order dynamic panel data models with general covariancestructure. The focus is on...

The simplest equilibrium search models depend on a few parameters that determine the joint distribution of unemployment spells, job spells, and wages. In this study we use aggregate data to estimate these key parameters for five OECD countries: (West-)Germany, The Netherlands, France, the United...

We analyze optimal monetary policy in a sticky pricemodel where the central bank supplies money outrightvia asset purchases and lends money temporarily againstcollateral. The terms of central bank lending affect ra-tioning of money and impact on macroeconomic aggre-gates. The central bank can...

This paper considers the nature and the distribution of trade and FDI effects of a potential enlargement of the European Monetary Union (EMU) to the 10 countries that obtained EU membership in 2004. One-way and two-way error component gravity models are estimated using a data set of unbalanced...